ADM208EARU

Overview

The ADM208EARUZ is a robust RS-232 line driver and receiver manufactured by Analog Devices Inc. It operates from a single 5 V power supply (4.5 V to 5.5 V) and provides four drivers and four receivers for full-duplex communication. The device supports data rates up to 230 kbps with a typical quiescent current of 13 mA. It features ±15 kV ESD protection on all I/O lines, complying with IEC 1000-4-2 standards. The component utilizes internal charge pumps requiring four external 0.1 μF capacitors and is housed in a 24-lead TSSOP package.

Feature Summary

• Complies with the EU directive on electromagnetic compatibility (EMC), ensuring low emissions and high immunity.
• Provides enhanced electrostatic discharge (ESD) protection exceeding ±15 kV on all input and output lines.
• Includes electrical fast transient (EFT) burst immunity to withstand harsh electrical environments.
• Eliminates the need for external TransZorb suppressors through integrated protection circuitry.

Applications

• Laptop computers
• Notebook computers
• Printers
• Peripherals
• Modems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the package type and tape/reel configuration. Confirm that the component meets RoHS compliance requirements for your region. Ensure the voltage supply range aligns with system specifications before procurement.

Selection Notes

Select this component when designing systems requiring high ESD immunity and EMC compliance without external suppression components. It serves as a plug-in upgrade for older MAX2xxE designs. Verify that the application requires four drivers and four receivers, as other models in the family offer different channel counts or shutdown capabilities.

Part Context

The ADM208E belongs to the ADM2xxE family of RS-232 transceivers designed for operation in electrically harsh environments. This family includes variants like the ADM206E, ADM207E, ADM211E, and ADM213E, which differ in channel count and control features such as shutdown modes. The ADM208E specifically offers a symmetric 4-driver/4-receiver configuration.

Replacement Considerations

The ADM208E is backward compatible with earlier ADM2xx products. Designers upgrading from older designs can utilize it as a direct replacement. Check pinout compatibility if substituting with other members of the ADM2xxE family, such as the ADM207E or ADM211E, noting differences in enable/shutdown pins.